粟瘿蜂主要危害板栗,轻则减产,重则技条枯死或整树死亡,是板栗的一大虫害。此虫在我国从南到北都有分布。近二年来我省各栗产区亦有不同程度的危害,并且造成了一定的损失。研究和探讨相应的防治措施,减少其危害程度,是达到板栗丰产稳产的重要任务。 栗瘿蜂属膜翅目、瘿蜂科。成虫体长2.5～3毫米,体色黄褐色至黑褐色,前后翅透明。卵乳白色,椭圆形,一端有细柄。幼虫白色,体光滑,两端略尖,口器淡棕色。蛹长2.5～3毫米,乳白色,近羽化时腹面为白色,其它部位为黑褐色。 栗瘿蜂一年发生一代,以幼虫在芽内越冬,翌年4月上旬开始取食为害,被害芽逐渐形成虫瘿。虫瘿 Millet horns harm the main chestnut, ranging from light production, weight is dead or dead tree, is a major chestnut insect pests. This insect in our country from south to north have distribution. In the past two years, all the chestnut producing areas in our province also have different degrees of harm, and caused some losses. Studying and discussing the corresponding control measures to reduce the degree of harm is an important task to achieve high and stable chestnut yield. Chestnut bee Hymenoptera, beetle family. Adult body length of 2.5 to 3 mm, body color yellow brown to dark brown, before and after the wings transparent. Egg white, oval, one end with a thin handle. Larvae white, smooth, slightly pointed ends, mouthparts light brown. Pupa 2.5 ~ 3 mm long, milky white veins near the emergence of white, dark brown for other parts. A generation of chestnut bee occurs a year, larvae in the buds wintering, early April the following year began to feed on the victim, the bud gradually formed budworm. Insects 瘿